FR2444957A1 - Affichage opto-electronique a reflecteur - Google Patents

Affichage opto-electronique a reflecteur

Info

Publication number
FR2444957A1
FR2444957A1 FR7930874A FR7930874A FR2444957A1 FR 2444957 A1 FR2444957 A1 FR 2444957A1 FR 7930874 A FR7930874 A FR 7930874A FR 7930874 A FR7930874 A FR 7930874A FR 2444957 A1 FR2444957 A1 FR 2444957A1
Authority
FR
France
Prior art keywords
reflector
display
opto
electronic display
light beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7930874A
Other languages
English (en)
Other versions
FR2444957B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2444957A1 publication Critical patent/FR2444957A1/fr
Application granted granted Critical
Publication of FR2444957B1 publication Critical patent/FR2444957B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)
  • Details Of Measuring Devices (AREA)

Abstract

Affichage se composant de deux plaquettes 2, 3 renfermant entre elles une substance d'affichage 7, ainsi que d'un réflecteur 6 disposé sur la plaquette arrière 3. Le réflecteur 6, qui est en matière thermoplastique, a une structure 10 qui est formée d'éléments de surface réfléchissante en forme de rubans 10A...10K qui sont inclinés sur le plan d'affichage et qui renvoient le faisceau de lumière incidente 22 dans l'oeil de l'observateur 8. Application à l'affichage d'instruments qui sont disposés verticalement en position fixe, de manière à éviter que le faisceau lumineux provenant d'une source 9 placée au-dessus de l'appareil soit renvoyé vers le sol par le réflecteur.
FR7930874A 1978-12-20 1979-12-17 Affichage opto-electronique a reflecteur Granted FR2444957A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1292578A CH633381A5 (de) 1978-12-20 1978-12-20 Elektrooptische anzeige mit reflektor.

Publications (2)

Publication Number Publication Date
FR2444957A1 true FR2444957A1 (fr) 1980-07-18
FR2444957B1 FR2444957B1 (fr) 1983-07-18

Family

ID=4387668

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930874A Granted FR2444957A1 (fr) 1978-12-20 1979-12-17 Affichage opto-electronique a reflecteur

Country Status (5)

Country Link
US (1) US4298249A (fr)
CH (1) CH633381A5 (fr)
DE (1) DE2901580A1 (fr)
FR (1) FR2444957A1 (fr)
GB (1) GB2040061B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465287A1 (fr) * 1979-09-07 1981-03-20 Gen Electric Moyens ameliorant l'eclairement d'une cellule d'affichage a cristaux liquides et dispositifs d'affichage ainsi obtenus
EP0100112A1 (fr) * 1982-07-13 1984-02-08 BBC Aktiengesellschaft Brown, Boveri & Cie. Dispositif d'affichage à cristal liquide
EP0326248A2 (fr) * 1988-01-25 1989-08-02 Raychem Corporation Dispositif d'affichage
EP0490132A2 (fr) * 1990-12-07 1992-06-17 AT&T Corp. Afficheur LCD avec retro-réflecteur multifacetté
EP0541370A1 (fr) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Tableau d'affichage pour lumière du jour et artificielle avec filtre coloré modelé et couche réflective
EP0541371A1 (fr) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Tableau d'affichage pour lumière du jour et artificielle avec substrat modelé, filtre coloré et couche réflective
EP0549890A1 (fr) * 1991-12-31 1993-07-07 AT&T Corp. Dispositif d'affichage à cristal liquide avec réflecteur arrière microtexturisé et méthode de fabrication

Families Citing this family (54)

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US4431272A (en) * 1980-05-08 1984-02-14 Kabushiki Kaisha Suwa Seikosha Liquid crystal display device
US4698022A (en) * 1981-06-11 1987-10-06 Foggles, Inc. Visual occulsion apparatus for pilot training
EP0097384B1 (fr) * 1982-06-18 1987-01-28 Koninklijke Philips Electronics N.V. Dispositif d'affichage à cristaux liquides
IT1196057B (it) * 1983-03-23 1988-11-10 Borg Instr Gmbh Dispositivo indicatore policromo a cristalli liquidi nonche' procedimento per ottimizzare il contrastro di celle a cristalli liquidi con effetto di campo
US4832458A (en) * 1984-08-28 1989-05-23 Talig Corporation Display for contrast enhancement
US4732456A (en) * 1984-08-28 1988-03-22 Taliq Corporation Scattering display for contrast enhancement including target
US4726662A (en) * 1985-09-24 1988-02-23 Talig Corporation Display including a prismatic lens system or a prismatic reflective system
US4818074A (en) * 1986-09-03 1989-04-04 Ricoh Company, Ltd. Projection device for irradiating a light to a display device and optically magnifying and projecting a reflection light therefrom
US4874228A (en) * 1987-03-24 1989-10-17 Minnesota Mining And Manufacturing Company Back-lit display
US5076668A (en) * 1988-01-25 1991-12-31 Taliq Corporation Gain reflector-liquid crystal display
US4941723A (en) * 1988-03-18 1990-07-17 Dainippon Screen Mfg. Co., Ltd. Rod shaped linear light diffusion apparatus
JPH05509171A (ja) * 1988-09-12 1993-12-16 ジョンソン　ケネス　シー 分散補償回折格子
US5161057A (en) * 1988-09-12 1992-11-03 Johnson Kenneth C Dispersion-compensated fresnel lens
US4973139A (en) * 1989-04-07 1990-11-27 Hughes Aircraft Company Automotive head-up display
US5372504A (en) * 1991-07-25 1994-12-13 Buechler; Richard L. Apparatus for pilot training
US5132823A (en) * 1991-08-30 1992-07-21 Raychem Corporation Multipurpose liquid crystal display having means for removably positioning the retroreflector
US5182663A (en) * 1991-08-30 1993-01-26 Raychem Corporation Liquid crystal display having improved retroreflector
US5394255A (en) * 1992-01-27 1995-02-28 Sekisui Kagaku Kogyo Kabushiki Kaisha Liquid crystal display using a plurality of light adjusting sheets angled at 5 degrees or more
US5252069A (en) * 1992-03-30 1993-10-12 Richard A. Lamb Instrument flight rules (IFR) training device
EP0606939B1 (fr) * 1993-01-11 1998-05-06 Koninklijke Philips Electronics N.V. Système d'illumination et dispositif d'affichage comportant un tel système
US5526146A (en) * 1993-06-24 1996-06-11 International Business Machines Corporation Back-lighting system for transmissive display
US5600455A (en) * 1994-08-31 1997-02-04 Enplas Corporation Prismatic member with coarsened portions or triangular prismatic and semi-circular prismatic members arranged on a flat light emitting surface
JP2768313B2 (ja) 1995-06-13 1998-06-25 日本電気株式会社 反射型液晶表示装置
EP0843195B1 (fr) * 1995-07-28 2004-04-07 Sumitomo Chemical Company Limited Plaque reflechissante, plaque polarisante du type a reflexion et dispositif d'affichage a cristaux liquides du type a reflexion
JP3588180B2 (ja) * 1995-12-28 2004-11-10 株式会社エンプラス 光制御部材及びサイドライト型面光源装置
JPH1096806A (ja) * 1996-09-20 1998-04-14 Dainippon Printing Co Ltd ディスプレイ用反射材
KR100692104B1 (ko) * 1997-06-06 2007-12-24 스미또모 가가꾸 가부시키가이샤 반사형 액정 표시장치 및 광확산 반사판
US5995071A (en) * 1997-11-21 1999-11-30 Hewlett-Packard Company Reflective display utilizing fresnel micro-reflectors
US6897855B1 (en) * 1998-02-17 2005-05-24 Sarnoff Corporation Tiled electronic display structure
JP2000298274A (ja) * 1999-04-13 2000-10-24 Alps Electric Co Ltd 反射型液晶表示装置
US6795137B1 (en) * 1999-04-26 2004-09-21 Microsoft Corporation Methods and apparatus for implementing transmissive display devices
US7110062B1 (en) 1999-04-26 2006-09-19 Microsoft Corporation LCD with power saving features
US6356391B1 (en) 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
US6845212B2 (en) 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
US6447135B1 (en) 1999-10-08 2002-09-10 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
US7046905B1 (en) 1999-10-08 2006-05-16 3M Innovative Properties Company Blacklight with structured surfaces
JP3363415B2 (ja) * 1999-12-17 2003-01-08 日本アイ・ビー・エム株式会社 反射型液晶表示装置及び反射ユニット・アレイ
WO2001096941A1 (fr) * 2000-06-12 2001-12-20 Microsharp Corporation Limited Ecran a caracteristique de diffusion asymetrique de lumiere
TW571121B (en) * 2000-08-01 2004-01-11 James Cowan Directional reflector, method for making directional reflector and method for obtaining white light using directional reflector having a reflective surface
KR100432438B1 (ko) * 2001-01-18 2004-05-22 주식회사 송산 빛을 회절 및 확산시키는 프리즘 디퓨저
JP2002267821A (ja) * 2001-03-14 2002-09-18 Omron Corp 反射板、該反射板を用いた液晶表示装置、該液晶表示装置を用いた電子機器
US20030035231A1 (en) * 2001-08-03 2003-02-20 Epstein Kenneth A. Optical film having microreplicated structures; and methods
US6636285B2 (en) 2001-11-01 2003-10-21 Motorola, Inc. Reflective liquid crystal display with improved contrast
JP2003202563A (ja) * 2002-01-09 2003-07-18 Alps Electric Co Ltd 液晶表示装置
DE10231141A1 (de) * 2002-07-10 2004-01-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Lichtlenkung und Verfahren zur Herstellung der Vorrichtung
US7088405B2 (en) * 2003-05-05 2006-08-08 3M Innovative Properties Company Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays
US20050237749A1 (en) * 2004-04-22 2005-10-27 3M Innovative Properties Company Transflector
US8254029B2 (en) * 2007-02-14 2012-08-28 Aztec Systems, Inc. Surface relief volume reflective diffractive structure
US9690038B2 (en) 2007-06-22 2017-06-27 3M Innovative Properties Company Systems and methods for controlling backlight output characteristics
US8149351B2 (en) * 2008-12-08 2012-04-03 3M Innovative Properties Company Passive and hybrid daylight-coupled backlights for sunlight viewable displays
US8339542B2 (en) * 2009-06-26 2012-12-25 3M Innovative Properties Company Passive and hybrid daylight-coupled N-stack and collapsible backlights for sunlight viewable displays
US8228463B2 (en) * 2009-11-18 2012-07-24 3M Innovative Properties Company Passive daylight-coupled backlight with turning film having prisms with chaos for sunlight viewable displays
US8384852B2 (en) 2010-11-22 2013-02-26 3M Innovative Properties Company Hybrid daylight-coupled backlights for sunlight viewable displays
JP6267981B2 (ja) * 2014-02-04 2018-01-24 株式会社 オルタステクノロジー 表示装置用反射板、及びその製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1434906A (en) * 1972-08-04 1976-05-12 Marconi Co Ltd Liquid crystal display arrangements
US4043636A (en) * 1974-12-23 1977-08-23 Intel Corporation Illumination-panel for liquid crystal display of similar device
DE2647991A1 (de) * 1976-05-20 1977-12-01 Ebauches Sa Anzeigevorrichtung
FR2380565A1 (fr) * 1977-02-15 1978-09-08 Siemens Ag Dispositif comportant un modulateur de lumiere, notamment une cellule a cristal liquide

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US3734598A (en) * 1971-04-30 1973-05-22 Display Technology Corp Liquid crystal display device having an inclined rear reflector
US3728007A (en) * 1971-05-27 1973-04-17 Scm Corp Reflective type liquid crystal display device having improved optical contrast
US3881809A (en) * 1972-03-10 1975-05-06 Hoffmann La Roche Reflection system for liquid crystal displays
US3846014A (en) * 1973-07-02 1974-11-05 Itek Corp Liquid crystal display containing an additional broad angle back scattering material
US3891309A (en) * 1973-12-19 1975-06-24 Honeywell Inc Reflective alterable state material display
US4026637A (en) * 1974-05-22 1977-05-31 Kabushiki Kaisha Suwa Seikosha Timepiece display device utilizing liquid crystals of positive dielectric anisotropy
US4042294A (en) * 1976-03-17 1977-08-16 Micro Display Systems Inc Illuminated electro-optical display apparatus
US4185895A (en) * 1978-03-31 1980-01-29 Hughes Aircraft Company Reflective mode, dynamic scattering liquid crystal display system having a Fresnel reflector for lighting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1434906A (en) * 1972-08-04 1976-05-12 Marconi Co Ltd Liquid crystal display arrangements
US4043636A (en) * 1974-12-23 1977-08-23 Intel Corporation Illumination-panel for liquid crystal display of similar device
DE2647991A1 (de) * 1976-05-20 1977-12-01 Ebauches Sa Anzeigevorrichtung
FR2380565A1 (fr) * 1977-02-15 1978-09-08 Siemens Ag Dispositif comportant un modulateur de lumiere, notamment une cellule a cristal liquide

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465287A1 (fr) * 1979-09-07 1981-03-20 Gen Electric Moyens ameliorant l'eclairement d'une cellule d'affichage a cristaux liquides et dispositifs d'affichage ainsi obtenus
EP0100112A1 (fr) * 1982-07-13 1984-02-08 BBC Aktiengesellschaft Brown, Boveri & Cie. Dispositif d'affichage à cristal liquide
EP0326248A2 (fr) * 1988-01-25 1989-08-02 Raychem Corporation Dispositif d'affichage
EP0326248A3 (en) * 1988-01-25 1990-08-16 Taliq Corporation Visual display
EP0490132A2 (fr) * 1990-12-07 1992-06-17 AT&T Corp. Afficheur LCD avec retro-réflecteur multifacetté
EP0490132A3 (en) * 1990-12-07 1992-11-19 American Telephone And Telegraph Company Lcd display with multifaceted back reflector
EP0541370A1 (fr) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Tableau d'affichage pour lumière du jour et artificielle avec filtre coloré modelé et couche réflective
EP0541371A1 (fr) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Tableau d'affichage pour lumière du jour et artificielle avec substrat modelé, filtre coloré et couche réflective
EP0549890A1 (fr) * 1991-12-31 1993-07-07 AT&T Corp. Dispositif d'affichage à cristal liquide avec réflecteur arrière microtexturisé et méthode de fabrication

Also Published As

Publication number Publication date
US4298249A (en) 1981-11-03
GB2040061B (en) 1983-02-09
GB2040061A (en) 1980-08-20
DE2901580A1 (de) 1980-07-10
CH633381A5 (de) 1982-11-30
FR2444957B1 (fr) 1983-07-18

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Legal Events

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